Annual report pursuant to Section 13 and 15(d)

Note 15 - Supplemental Cash Flow Information (Details Textual)

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Note 15 - Supplemental Cash Flow Information (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Interest Costs Capitalized Adjustment $ 0 $ 0 $ 0